07-20-2014
03:51 PM
- last edited on
03-05-2024
10:38 PM
by
ROGBot
07-20-2014 06:55 PM
07-21-2014 04:18 AM
07-21-2014 09:43 AM
jeepcoma wrote:
I am running (what appears to be) the same memory kit no problems at it's rated speed and my 4960x at a comfortable 4.5 @ 1.2V. I'm pretty lucky though, I haven't had much to do in regards to RAM tuning beyond setting XMP and some power tweaks (nothing with timing other than setting latency to "nearest").
Couple questions and suggestions for you to try, though I am no expert:
1. Your original configuration of 4.5/2133 you mention you'd get random resets. Was it otherwise stable in terms of Prime95? Usually the reboots are related to the Current Capability settings, and there are three areas you need to tweak this (1 in CPU and 2 in DRAM). I have both DRAM Current Capability settings at 120%, and Power Phase Control set to Optimized. Try that and see if it cures the reset problem.
2. 4.5 is a pretty healthy OC on the CPU too so make sure you have the power settings done there. I have CPU LLC and Current Capability set to Auto (which gives High and 160% respectively) which allows CPU Power Phase Control to sit on Auto (if I manually select the LLC and Current Capability I'm forced to Extreme Power Phase Control, otherwise there is no difference in doing it manually). Make sure you disable Spread Spectrum for CPU and PCIe (there are two locations to do it in the BIOS, somewhat confusingly).
3. Going too high with some voltages can be as problematic as not enough voltage. I am running VTT at 1.0, VCCSA at 0.8 (adjusted via offset). I think there are some guidelines as to how these should relate to your CPU core voltage but I haven't had to get to that level of depth to get stability. I think your VTT/VCCSA is way too high.
4. The real trouble is isolating errors due to CPU or due to RAM. In my personal experience, it's always been CPU related, even when I've thought it's RAM. The fact that you're dropping speed and timings and still getting errors at a particular speed makes me think you're seeing the same thing with the CPU and the RAM stuff is a red herring. What are your CPU OC settings? I believe I'm at +0.1V in offset and then an additional +0.4 in Additional Turbo Voltage. Make sure your Rampage Memory Tweak is set to the IVB-E mode (I think it's #3), and test. If you get P95 errors, try changing the Memory Latency Boundary to "Furthest". This should kill your performance but hopefully stabilize the memory; if you're still getting errors, it suggests the RAM is not the weak link.
07-21-2014 04:32 AM
07-22-2014 03:40 AM
07-26-2014 09:20 AM
07-27-2014 04:35 PM
catch22alex wrote:
jeepcoma,
I just wanted to let you know and I followed your advice of VTT/VCCSA being too high. In my case, this seems like you were right. I havent fully optimized it, but I'm at 4.4ghz/2133 stable with 1.295Vcore, 1.1VTT, .95 VCCSA so far. I appear to have went wrong when the XMP profile set 1.25 and I thought increasing was better. I had decreased but not as dramatically as before. I may be able to get to 4.5ghz but It's no big deal to me if heat and power consumption will go up even more 🙂
07-27-2014 02:19 PM